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Updated: Apr 19, 2026
Visualizing and Quantifying Endonuclease-Based Site-Specific DNA Damage
Published on: August 21, 2021
Quality control mechanisms in cellular and systemic DNA damage responses.
Maria A Ermolaeva1, Alexander Dakhovnik1, Björn Schumacher1
1Institute for Genome Stability in Ageing and Disease, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931 Cologne, Germany; Cologne Excellence Cluster for Cellular Stress Responses in Ageing-Associated Diseases (CECAD) and Systems Biology of Ageing Cologne, University of Cologne, Joseph-Stelzmann-Str. 26, 50931 Cologne, Germany.
Genome maintenance is crucial for tissue function. DNA damage accumulation and quality control pathways influence ageing and disease, involving both cell-specific and systemic responses.
Area of Science:
- Genetics and molecular biology
- Cellular biology
- Gerontology
Background:
- Genome maintenance is vital for cellular and tissue integrity.
- Accumulated DNA damage contributes to ageing and age-related diseases.
- Defects in genome maintenance cause premature ageing syndromes and cancer susceptibility.
Purpose of the Study:
- To explore the role of quality assurance pathways in genome stability.
- To understand cell-autonomous and systemic responses to DNA damage.
- To elucidate the impact of DNA damage on ageing.
Main Methods:
- Review of current literature on DNA damage responses.
- Analysis of quality control pathways in DNA repair.
- Investigation of non-cell autonomous effects of DNA damage.
Main Results:
- Genome instability has complex pathological consequences beyond cell-autonomous DNA damage responses (DDR).
- Quality control pathways are integral to DNA repair and cellular DDR.
- Non-cell autonomous effects of DNA damage significantly impact physiological adaptations during ageing.
Conclusions:
- Quality assurance pathways are critical in both cell-specific and organism-wide responses to genome instability.
- Understanding these pathways is key to addressing age-related functional decline and disease.
- Integrating cell-autonomous and systemic perspectives is necessary for a comprehensive view of genome maintenance and ageing.
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